Stone-planing machine



'N NT R. W Wu],

5 sheets-sheet 1.

cams a, a,

Patented Mar. 3,1891.

E SMALLWOOD STONE PLANING MAGHINE.

(No Model.)

WITNESSES.

(N M del.) 5 Sheets-Sheet E. SMALLWOOD. STONE ,PLANI'NG MACHINE; No. 447,372. I Patented Man-3,1891.

3 t e h 4 s t e e h 5 (No Model.)-

B SMALLWOOD STONE PLANING MACHINE.

WITNESS-E5- amp/1 21. 73m

(No Model.)

Fi g4.

-r w 'ss s- 5 SheetS- -Sheet 4. E. SMALLWOOD.

STONE PLANING MACHINE.

Patented M-ar; 3, 1891'.

' INVEN DR.

Q Tb allwhom it-midy c'oneerm its ' meansjforrevolyin'g the'eylinder in- --both direetions and forjs'imultaneously reversing the].

' motion ,of bothtthecylinder and table,'wher'e- I bythisclass of machines is adapted to plane.

ration.

hnd combination-of parts herein described,

' the same fro'm;the direction indicated by the arrow Fig; 4;is an end view'lcoking in the transverse of the "machine while said wheel -isreyo1-vi ng; Fig. his ayiew' of gene of the 'planin'g tools.

I 5v a machine'shown-l the draw ngs, and for thei "purpose "ofadding .ciearness to the explana- Inithe drawings; Figure 1 is a top plan View elevation of the machine, looking atthesanie flatransver'se sectional view through the ;cy1-' inder to 'whichu the pianingtools aresecnred,

1 Fig.5 is a transverse sectional view throh'gh. the cylinder, shewin-g modified means for-se "the mechanism whereby the-I'sameis moved NITED STATES} ATEENT v ED RD s'MALmvoen. or 'ELYRIA'JOI-VIIO;

. S'T'ON E L N]NeM eHmg Y sneritcxrron$er in 5mph Letters r take m. 447,'s'12 ,-asta flat ens; 1 911,

hpi 1icationfi1ed1lnrohi8, 890; se NB. 544,568; (No man-J Be itknownthatiL'ED'WARp SMALL'WiOOD Of -E1-yr ia, in the; countyof I o'i'ain' and State f- Ohio, have invented certain new and useful Improvements in Stone Planing Machines; and I do hereby declare the; following to be such-a full, clear, and'exact descriptionofthe *invention as will, enable others skilled in the iart-to whie'hit appertainjsi to'make and use the amaehine of .thclabovc-descrihed class. with the stone resting on the' table dtiring both-the backward and forward; 4 movements thereof,

- to provide. novel. meansfo adj nstably secnr I, 1 ing the stone cu-tting: tools in'the cylinder, and. to provide mechanism whereby the tools may be ground; endkept'i n condition to pram 1 the stone without stopping the pianil 'g oper To this end itl'consists' iii the construction and shown'in thedrawings, all. of which will bedefinit'ely pointed ont in the c1 aims of my improvedmachine; Fig. 2 is aside in the direction indicated by the arrow 2,

shown in Fig; 1". v 31s a side elevation'of direction indicated by the'arrow 4." Fig; 6 is curingthe planing to'o'ls in the cylinder. Fig-. 7

is a front elevation-of thejgrindingqirheeiand 1 v -I: wi1l now-memes id dese'ribein hen the;

tion I will refer to the various parts shown in the several figures by referencesletters.

A represents-the base or. bed of the ma- :5

ehine. Q'Attachcdto said base and on'the opposite sidethereof" are; the two upright side Jframes-Bflvhieh arehonneeted at their tops .bya-suitablecross-beanr'B'. ifThese parts- 'to,;wit, the base and s'ide'fraines and the con: 6o

meeting eros's-baih-eonstitute' what may be h e I termed'the'F'Ifi-ame of thoin'achine,-anda11- fMyinvention relates to stone planing' machineshayi'ng"a"'recipr6cating table and a re- .vo'iving cylinder carhying-the tools for" plan'- ing the stone; and the'objects are to'pro vide ofthe moyable parts hereinafter" described ;are;ni0hjntedu'ponand supported by this [frame --work in; substantially the manner 6;

specified. Extending. lengthwise of the bed and secured thereto at; a suitable distance apartare the ways A! A on whi'oht-he-worktablet? slides-back andfo'rthgThe-ways A, .f V. IA; in the base and the ribs on the'nnder' side -of the table, which-slide therein, maybe of any sn'itable'shape or construction, provided "they are adapted-the one-to the other. The coh'strnctionof these parrs'showninthe draw ingsisf-as foilowsz' The ways are rectangular fand aj-sni'table number of friction-rollers ca are placed in each; The ribs on the table arevalso rectangu'lanhhd the bottomparts'thereg 'ojfres't and slide, upon these friction roliers Y fGrrepresent-sthe main driving-shaft of the 8o mach-ine,'which ismounted in suitable bear -ihgsfl in the base" and extends, transversely across the machine'b'elow theflwork-table C,

-Upon.on'e end of thisshaft are mountedtwo, loose .pu'lleys'ybetweenwhich is' a. double" :clutch L- L, of anyi'approved construction,

ada pte'dto engage with either pulley'or to be disengagedlfroni both: One ofthese pulleys 1 'is'driven in one direction, and the other pulley in the contrary direction. lherefore, accord-' o in; asthe clutch engages with the" one bit-the etherof these-pulleys will the; direction in' which 1 the machine. is run-be determined.

Ontheopp'osite nd .of the main shaft efthe'j vmachine -i's a pinion g, which'enga,ges one ofgg. a train-0f gears,'the .lastef vwhich (indicated:

by the letter'i) is secured to a. shaft-'lgfsuit 1 ably mounted v in'thejframe-work andextend- 'ing tofnearthe transverse middleofth'e maichinefbeneath the .tab1e-C. The pnrpos'efof. roe this train of gears is, first, to transmitpower from'the main shaft tothe shaft. I, and, second,it'o differentiate the speed of said 'two tfsh'ztftsr The relative sizes of said gems and heel corn 2 447,372

Two methods for securing the tools in the cylinder are shown in the drawings, both of which have certain common features. The cyli nder is provided with radial sockets suitably disposed, as shown in Fig. 5. Each socket contains a radially-movable bar R, having a knee '2' at substantially right angles to its body. The tool enters the socket, and its end abuts against said knee. The knee-bar is moved out or in by a screw S, whereby the projection of the tool is adjusted. When the tool is in the proper position, it is secured in placed by a wedge or wedges s or other suitable means. The modified mechanism includes a removable box '1, adapted to be secured in the socket in the cylinder, always entering the samedistance. This distance may be determined by a flange on the box or by the depth of the socket. The box con tains the same adjustable knee-bar and is provided with t e set-screw for adj listing it, all of which are shown in Fig. 5. W'hen properly adjusted, the tool is secured by a wedge or wedges, as in the former case. The boxes themselves are secured in the cylinder bywedges or other suitabi niecha' in.

he operation of the in a hhine as t s far explained is as follows: The stone to be planed isplaced upon the reci rocaiingtnble. The revolving cylinder is properly adjusted by moving blocks K, in which said cylinder is Jonrnaled, up ordovvm-as the circumstances One of the clutches L is thrown into engagement with its pulley and the mac inc starts, the table moving, for example, to the right, as shown in Fig. 3, in which case the cylinder, which simultaneously begins its revolution, revolves in the direction indicated by the arrow in said figure. When the table has traveled as far as desired in that direction,a log 12', attached to said table, engages with the shiftinglever U, and thereby shiftingtheelntch on the main shaft an connecting the same with the pulley which has hitherto been running freely, whereupon both the table and the cylinder reverse the direction of theirmotion; The cylinderis moved downwardby the means hereinbefore described, and the tools by reason of their radial projection from the cylinder will cut the stone upon the table during this reverse-motion of the parts, as above described.

It may sometimes be desirable to run the table while the cylinder is stationary or to pinions may be such that the speeds of said two shafts may bear any desired relation to each other. ccured to the under side of the table C is a rack r, and mounted upon the shaft I. is a pinion i, which engages with said rack, whereby the table is caused to reciprocaie+that is to say, to move in either direction, depending upon the direction in which the shaft I revolves.

IO J J represent two vertically-disposed revoluble, screws suitably mounted adjacent to the side frames 1 Each of these screws passes through a suitably-tln'caded orifice in a movable block K. On the top of each screw is a worm-wheelj, which engages with a worm II, mounted in suitable earings on the crossbeam B. On one end of this'worm are socured tight and loose pulleys suitably belted. to a counter-shaft, whereby the worm may be revolved in either direction and the blocks K are also guided by their engagement with suitable vertical grooves in the side frames 2 5 B. These blocks K K are provided with jblll rial-boxes, in which the ends of the shaft d are mounted, and a cylinderD is secured rig idly to said shaft. The planing-tools are suitably secured to this cylinder in a manner 3:: hereinafter described. The cylinder, it will be seen, is moved to a greaterorless distance above the surface of the reciprocating table as the boxes in which its shaft is mounted are moved by the mechanism previously de- 5 scribed. The cylinder itself 1s revolved by the following mechanism, to wit: Avertical shaft N is suitably mounted in brackets secured to the side frame to which it is adjacent. A beveled gear is secured to the end 0 of the shaft d, and it meshes with the beveled h is mounted in abracket it, seecured to the block K on that side of the mm A tongue-and-groove connection between the vertical shaft N and the beveled 5 gearN causes both to revolve together whatever be the elevation of the beveled gear. This vertical shaft N is driven by the main shaft G by means of a train of gears, which also afford means whereby the relative speeds 5c of the main shaft and vertical shaft N may be differentiated. p

The stone'cutting tools Q are secured to the revolving cylinder and project from its periphery in a spiral line. As shown in the drawings, the tools are secured in radial sockets in said cylinders, whereby the tools out the stone when the cylinder is revolving in either direction. The tools are set in the cylinder so that the cutting-edges of succeeding tools overlap each other slightly, as shown, which prevents the formation of a ridge on the planed face of the stone between the points of contact therewith of adjacent tools. In the preferred construction this overlapping t5 of the outer edges is produced by flaring or spreading the tools sidewise at and near the cutting end thereof.

Ils

It is clear that the character of the work performed by the cutting tools is such that able boxes 00 0c, and in such relation to the revolving cylinder that it is adapted to grind the tools as said cylinder revolves and without their removal from the sockets in which they are secured. By this combination ,of

- parts no time is lost,'and the tools when once adjusted need no further adjustment until they are so far ground away as to be no longer available for cutting stone. The boxes :1: x, in which this emery or grinding wheel ismounted, are provided with screw threaded orifices, through which pass vertically-disposed screws Y, having a worm-wheel 11 on the top. A Worm Z, mounted in suitable bearings and extending across the machine, engages with these worm-wheels and is revolved by a sheave or other suitable means when it is desiredto move the boxes up or down. In order. to prevent the tools from forming grooves in the grinding-wheel, said wheel is automatically given an axial movement by meansof a'slowlyrevolving disk E, which is set onits shaft obliquely. The edge of this disk engages between two collars m w on the shaft ofv the grinding-wheel, and thus, while it in nowise interferes with the rapid revolution of said shaft, slowly moves it back and forth a short distance transversely of the machine.

tion, a reciprocating table, a vertically ad justable revolving cylinder having stone-cut-- ting tools projecting radially from its surface,

a main shaft, and. suitable connections between said shat't and the table and cylinder,

'taneously reversing the motion of table and ing them in said radial sockets, to witz-a-re- -m0vable box T, having a flange around its respectively, two reversely-revolving pulleys 5 mounted loosely on said shaft, a double clutching device secured to said shaft, and mechan; ism operated by the table for throwing said clutching device out of engagement with one of said pulleys and into engagement with the other, whereby .the direction in which the shaft revolves is reversed, with the result of simultaneouslylreversing thenmotion of both the table and cylinder, substantially as and for the purpose specified. '65

' 3. In a stone-planing machine, in combination, a reciprocating table; a revolving cy1in-' der having stone-cutting tools projecting ra dially from its surface, mechanism for simulcylinder, a revolving grinding-wheel parallel to said cylinder, and mechanism for moving said grinding-wheel toward and from said cylinder, substantially as and for the purpose specified. I j

4. In a stone-planing machine, in combination, a. reciprocating table, a vertically-ad justable revolving cylinder having radial sockets for the reception of the stone-cutting I tools, and the following mechanism for hold- 8 in g and adjusting said tools within the socket, to witfa radially-movable knee-bar, a screw the inner end of which'engages witha threaded socket in said knee-bar, the outer end of. said screw being'accessible fromoutside the-cyl- 8 inder, and. a wedge for holding the tool firmly in place with its end resting against the knee of said bar, substantially as and for the purpose specified.

5. In a stone-planing machine, in combina- 9 tion, a reciprocating table, a vertically -'adjnstable revolving cylinder having radial sockets, and the following mechanism for adjusting the position of the tools and for secur'-.

upper edge,,.a knee-bar inelosed .within said box, a screw S, passing through the upper part of said box and engaging with said knee bar, a wedge for securing the tool within said box-with its end resting against the knee of. .1

said bar, and a wedge for: securing the box within the socket, substantially as and for the purpose specified. j

- EDWARD SMALLWOOD. Witnesses:

E. L. THURSTON, ALBERT H, BATES. 

